Ice-making apparatus.



0. FREYTAG. IGE MAKING APPARATUS.

APPLICATION FILED HIRE, 1911. I 1,004,405. Patented Sept. 26, 1911.

MIIHH IV! T NESSYZ S I INVENTOR "O 0. FREY TAG. ICE MAKING APPARATUS. APPLICATION TILED IBB.2, 1911.

Patented Sept. 26, 1911.

2 SHBETB-BHEET 2.

v a y 2 1 WITNESSES.

E W m UNITED srarasgggnnr OFFICE.

OTTO FREYTAG. OF BOISE, IDAHO.

ICE-MAKING APPARATUS.

To all wkom it may concern:

Be it known that I, O'r'ro FRnY'rAo, a citi- .zen of the United States, residing at Boise,

-which clear, hard ice will be quickly and economically made. v

As is well known raw water when frozen produces ice that is white or .opaque and this is due to the fact that air cells are froze therein. The present invention aims to overcome this defect by intermittently blowing jets of compressed air through the raw water so that the air cells will be forced to the surface of the water that is to be frozen so that clear,hard ice will be produced. 1

In carrying out. the objects of the invention generally stated above it will be understood of course, that the essential features thereof are necessarily susceptible of changes in details and structural arrangements, one

preferred and practical cniibodiment of which is shown in the accompanying drawings, wherein Figure 1 is a vertical sectional view of a freezing tank, showing in elevation, the improved air delivering mechanism. Fig. 2 is a transverse sectional view thereof. Fig. 3 is a vertical sectional view of the air delivering mechanism.

Theimproved mechanism for automatically and intermittently delivering air to liquid that is to be frozen has been shown in connection with a tank 5 having regularly spaced parallel supporting beams 6 extending transversely across the upper portion thereof above the water level, said beams being preferably I-shapcd and having the plates 7 suspended therefrom and resting on the supports 8 carried by the bottom of tank 5- so that the lower endsof said plates are retained above the bottom of said tank. The tank described obviously produces what is termed plate ice, but it is to he understood that this invention is not limited to usein connection therewith.

The air delivery mechanism cmnprises a bracket 9 having the flattened outturned feet Specification of Letters Patent. Patented Sept, 26, 1911 Application filed February 2, 1911. Serial No. 606,171).

10 adapted to be fastened to a wall or other support. "Said bracket is provided witha cylindrical bearing opening 11 which preferably tapers and from which the ports 12 radiate and extend transversely through the body of the bracket and terminate in enlarged internally threaded outlets 13. A plug 14-, shaped to correspond with the contour of the bearing 11, is rotatably fitted in said bearing and has its rear end provided with a seat 15 from which a threaded shank 16 projects. A washer 17 is fitted over. said shank 16 and is clamped to the seat 15 and the rearend of the body of the bracket 5 by means of a nut 18 that engages saidshank. The plug 14 is provided with a central inlet passage .19 the inner end of which communirates with a lateral discharge passage 20 adapted to be intermittently brought into registry with the ports 12 by the rotationsof said plug. The outer endof plug 1 1 projects beyond bracket 5 and has a ratchet wheel 21 detachably fastened thereon that is provided with an internally threaded central opening 22 that communicates with inlet passage 19.

An annular flange surrounds the rear end of opening 22 and is tightly fitted in a groove 21 that surrounds the trout end of passage 19 to seal the oint between said opening and passage.

A hollow shaft 25 has one end equipped T with threads that engage the threads of;

opening 22. The other end of said shatt ex tends into a chamber 26, through a stuliing box 26, and is provided with a flange 98 that abuts a shoulder 29 in said chamber. An air supply pipe 30 extends into said chamber 26 and a relief pipe 31 also extends therein, said pipe 31 being provided with a controlling valve 32.

The ratchet wheel 21 is intermittently rotated by means of a pawl 33 that is carried by an operating rod 34. ,The rod 34. is corentrically connected to a disk 35 that is rotated by suitable power to ICUlIHOCZLlG said rod. A spring 36 is employed to hold the pawl 33 in position to engage the teeth of the ratchet wheel 21.

Pipes 37 extend from the outlets 13 of ports 12 and project into tank 5 between the plates 7 andterminate in branches 38 that c.\ (end transversely across the lower portion of the tank between the supports g a hsi are provided with discharge outletssilfii As-will be understood from the foregoing, the plug 14 is intermittently rotated by means of the ratchet 21. and pawl 33 so that 12, the pipes 37 which are connected to the outlets 13 thereof will. convey the air to the branches 38 so that the outlets 39 thereof will discharge jets through the water, as is shown in Fig. 2, so that air cells in said water will be forced to the surface thereof.

What I claim as my invention is 1. An apparatus for delivering air jets to freezing receptacles comprising a source of air supply, air jet discharging means, intermittently. operated rotatable mechanism controlling the delivery of air from said source of supply to said discharging means, and means for operating said mechanism.

2. In an ice making apparatus, the combination with a water containing tank, of air conveying means extending into said tank and having outlets in the base portion there of, and intermittently operated rotatable mechanism for controlling the supply of air to said. conveying means.

3. In an ice making apparatus, the combination with a freezing receptacle, of air conveying pipes extending therein and provided with discharge outlets, a source of air supply, a rotatable valve controlling the communication between said air supply and said pipes, and means for intermittently rotating said valve.

4. In an ice making apparatus, the combination wlth an 1ce making receptacle, of

a supporting bracket provided with radiating ports, a plug rotatable in said bracket and provided with passages adapted to be placed in communication with said ports, means for delivering air to said passages, means for intermittently rotating said plug, and air conveying pipes connected to said ports and having discharge branches in said receptacle.

5. An apparatus for delivering air jets to freezing receptacles comprising a supporting bracket providedwith radiating ports, a plug rotatable in said bracket and provided with an outlet passage adapted to be placed in communication with said ports and'with an inlet passage that communicates with said outlet passage, a ratchet wheel carried by said. plug, means engaging said ratchet to intermittently rotate said plug, means extending through said ratchet for delivering air to said inlet passage, and air conveying means extending from said ports and provided with discharge outlets.

('3. In an ice-making apparatus, the combination with a freezing receptacle, of pipes extending across the bottom thereof and provided with discharge outlets, a source of air supply, intermittently operated rotatable mechanism controlling the delivery of air to said pipes, and meansfor operating said mechanism;

In testimony whereof I hereunto affix my signature in presence of two witnesses. OTTO FREYTAG. Witnesses:

E. D. CLARK, G. E. TONKIN. 

